International journal of dental hygiene最新文献

Background: Dentine hypersensitivity (DH) is a common oral condition. The management of DH has been challenging with various treatment options, including in-office and home care.

Objective: To evaluate the efficacy of hydroxyapatite-containing toothpaste for the reduction of DH pain compared to potassium nitrate-containing toothpaste in short-term use.

Methods: A randomised; non-blinded clinical study involved 39 participants in the age group range 18-51 years. The patients were randomly divided into two groups. The test group (n = 19) was provided with hydroxyapatite toothpaste, while the control group (n = 20) received potassium nitrate toothpaste. Volunteers were examined using an air blast as the stimulus. DH pain scores (Visual Analogue Scale [VAS] and Schiff) were recorded at baseline, 2 weeks and 4 weeks.

Results: Both toothpastes significantly relieved DH in response to air-blast stimulus (p < 0.001). The relief of sensitivity was efficacious after 2 and 4 weeks for both toothpastes. The efficacy of hydroxyapatite toothpaste was comparable to that of potassium nitrate toothpaste.

Conclusion: This study shows that hydroxyapatite in higher concentrations has a similar efficacy in relieving DH as potassium nitrate.

Clinical significance: DH affects the quality of life. The use of a desensitising toothpaste can relieve DH. However, there is no gold-standard management for DH. The outcome of this study supports the use of hydroxyapatite toothpaste for DH relief.

Objective: To compare the efficacy of 0.12% chlorhexidine (CHX) mouthrinse alone and combined with brushing in controlling plaque and reducing gingivitis.

Methods: This study was a randomised clinical trial with an examiner-blind, split-mouth experiment. Thirty participants were scaled, polished and instructed on oral hygiene for 2 weeks before commencing a 14-day non-brushing split-mouth trial. After 2 weeks, the participants teeth were polished, then randomly allocated to the right or left non-brushing side groups and instructed to rinse with 0.12% CHX twice daily for 2 weeks. The evaluation of the plaque index and gingival index was performed by a blinded, calibrated investigator.

Results: Twenty-seven subjects completed the study (right non-brushing: n = 13/left non-brushing: n = 14). The participants' characteristics were not significantly different between groups. After 2-week rinsing with CHX, post-treatment PI and GI were significantly lower compared to baseline on both the non-brushing and brushing sides (p < 0.000, 0.001, 0.007 and 0.001, respectively). GI reduction was significantly greater on the brushing sides (mean difference -0.220, 95% CI -0.476 to -0.036, p = 0.016), though PI reduction showed no significant difference between interventions (ΔPI: 1.23 vs. 1.01, mean difference -0.139, 95% CI -0.251 to -0.027, p = 0.091).

Conclusion: There was no difference in plaque inhibition when rinsing with CHX as an adjunct to mechanical plaque control compared with CHX alone in a split-mouth design.

Trial registration: Thai Clinical Trials Registry: TCTR20200312006.

Background: The internet is an important source of health information for the population. There is robust evidence about the efficacy of mouthwashes in the prevention and treatment of oral diseases. However, many websites containing mouthwash-related content may display misinformation and be challenging to read and understand. Thus, this study evaluates the quality of information available about mouthwashes on Brazilian websites.

Methods: A total of 100 websites were evaluated across Google, Bing and Yahoo!. The websites were organised into rankings according to their order of appearance on each of the four search engines. Two independent examiners assessed the quality of the websites using the DISCERN questionnaire and the Journal of American Medical Association (JAMA) benchmark criteria. The readability of the sites was assessed by the Flesch Reading Ease adapted to Brazilian Portuguese (FRE-BP). The content of the websites was categorised according to the presence or absence of information relevant to the theme. Statistical analysis was performed using Spearman rank correlation coefficient, Mann-Whitney U test, Kruskal-Wallis test and Dunn post hoc test.

Results: A total of 32 sites were analysed. Web content was considered of poor quality by DISCERN (mean 37.46 ± 8.28) and JAMA (mean 1.37 ± 0.87) scores, presenting difficult reading levels (FRE-BP: mean 44.04 ± 9.89).

Conclusions: The mouthwash-related content available on Brazilian websites was considered of low quality and difficult to read.